Bug 2567555 (CVE-2026-82904)

Summary: CVE-2026-82904 ofbiz: ofbiz: Denial of Service via unbounded multi-form request parameters
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Apache OFBiz. A remote, unauthenticated attacker can cause a Denial of Service (DoS) by sending a specially crafted HTTP request containing multi-form parameter names with an excessively large row count. Because the application does not enforce an upper bound on the row count, it executes an excessive number of synchronous service dispatches in a loop, exhausting server resources and causing request thread starvation.
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Description OSIDB Bzimport 2026-11-05 22:07:10 UTC 
Uncontrolled Resource Consumption in ServiceMultiEventHandler in Apache OFBiz 24.09 before 24.09.08 on all platforms allows a remote unauthenticated attacker to pin a server request thread for an attacker-chosen number of synchronous service dispatches, up to the signed-integer maximum, by submitting a single small HTTP request whose parameter names encode a row count via the "o" suffix used by multi-form submissions, because UtilHttp.getMultiFormRowCount derives that count from the largest such suffix with no upper bound and ServiceMultiEventHandler.invoke then loops that many times calling dispatcher.runSync, with the request-map for getFinAccountTransRunningTotalAndBalances reaching this handler with no authentication or CSRF requirement on a stock deployment. Users are recommended to upgrade to version 24.09.08, which fixes this issue.